G4RPGKMinusInelastic Class Reference

#include <G4RPGKMinusInelastic.hh>

Inheritance diagram for G4RPGKMinusInelastic:

G4RPGInelastic G4HadronicInteraction

Public Member Functions

 G4RPGKMinusInelastic ()
 ~G4RPGKMinusInelastic ()
G4HadFinalStateApplyYourself (const G4HadProjectile &aTrack, G4Nucleus &targetNucleus)

Detailed Description

Definition at line 40 of file G4RPGKMinusInelastic.hh.


Constructor & Destructor Documentation

G4RPGKMinusInelastic::G4RPGKMinusInelastic (  )  [inline]

Definition at line 44 of file G4RPGKMinusInelastic.hh.

References G4HadronicInteraction::SetMaxEnergy(), and G4HadronicInteraction::SetMinEnergy().

00044                            : G4RPGInelastic("G4RPGKMinusInelastic")
00045     {
00046       SetMinEnergy( 0.0 );
00047       SetMaxEnergy( 25.*CLHEP::GeV );
00048     }

G4RPGKMinusInelastic::~G4RPGKMinusInelastic (  )  [inline]

Definition at line 50 of file G4RPGKMinusInelastic.hh.

00051     { }


Member Function Documentation

G4HadFinalState * G4RPGKMinusInelastic::ApplyYourself ( const G4HadProjectile aTrack,
G4Nucleus targetNucleus 
) [virtual]

Implements G4HadronicInteraction.

Definition at line 35 of file G4RPGKMinusInelastic.cc.

References G4RPGInelastic::CalculateMomenta(), G4Nucleus::Cinema(), G4Nucleus::EvaporationEffects(), G4cout, G4endl, G4HadProjectile::Get4Momentum(), G4HadProjectile::GetDefinition(), G4DynamicParticle::GetDefinition(), G4ReactionProduct::GetKineticEnergy(), G4HadProjectile::GetKineticEnergy(), G4HadProjectile::GetMaterial(), G4ReactionProduct::GetMomentum(), G4Material::GetName(), G4ParticleDefinition::GetParticleName(), G4ParticleDefinition::GetPDGMass(), G4FastVector< Type, N >::Initialize(), isAlive, G4InuclParticleNames::pp, G4Nucleus::ReturnTargetParticle(), G4HadFinalState::SetEnergyChange(), G4ReactionProduct::SetKineticEnergy(), G4ReactionProduct::SetMomentum(), G4HadFinalState::SetMomentumChange(), G4ReactionProduct::SetSide(), G4HadFinalState::SetStatusChange(), G4RPGInelastic::SetUpChange(), G4HadronicInteraction::theParticleChange, and G4HadronicInteraction::verboseLevel.

00037 {
00038   const G4HadProjectile *originalIncident = &aTrack;
00039   if (originalIncident->GetKineticEnergy()<= 0.1*MeV) 
00040   {
00041     theParticleChange.SetStatusChange(isAlive);
00042     theParticleChange.SetEnergyChange(aTrack.GetKineticEnergy());
00043     theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit()); 
00044     return &theParticleChange;      
00045   }
00046 
00047   // create the target particle
00048     
00049   G4DynamicParticle *originalTarget = targetNucleus.ReturnTargetParticle();
00050   G4ReactionProduct targetParticle( originalTarget->GetDefinition() );
00051     
00052   if( verboseLevel > 1 )
00053   {
00054     const G4Material *targetMaterial = aTrack.GetMaterial();
00055     G4cout << "G4RPGKMinusInelastic::ApplyYourself called" << G4endl;
00056     G4cout << "kinetic energy = " << originalIncident->GetKineticEnergy() << "MeV, ";
00057     G4cout << "target material = " << targetMaterial->GetName() << ", ";
00058     G4cout << "target particle = " << originalTarget->GetDefinition()->GetParticleName()
00059            << G4endl;
00060   }
00061   G4ReactionProduct currentParticle( const_cast<G4ParticleDefinition *>(originalIncident->GetDefinition()) );
00062   currentParticle.SetMomentum( originalIncident->Get4Momentum().vect() );
00063   currentParticle.SetKineticEnergy( originalIncident->GetKineticEnergy() );
00064     
00065   // Fermi motion and evaporation
00066   // As of Geant3, the Fermi energy calculation had not been Done
00067     
00068   G4double ek = originalIncident->GetKineticEnergy();
00069   G4double amas = originalIncident->GetDefinition()->GetPDGMass();
00070     
00071   G4double tkin = targetNucleus.Cinema( ek );
00072   ek += tkin;
00073   currentParticle.SetKineticEnergy( ek );
00074   G4double et = ek + amas;
00075   G4double p = std::sqrt( std::abs((et-amas)*(et+amas)) );
00076   G4double pp = currentParticle.GetMomentum().mag();
00077   if( pp > 0.0 )
00078   {
00079     G4ThreeVector momentum = currentParticle.GetMomentum();
00080     currentParticle.SetMomentum( momentum * (p/pp) );
00081   }
00082     
00083   // calculate black track energies
00084     
00085   tkin = targetNucleus.EvaporationEffects( ek );
00086   ek -= tkin;
00087   currentParticle.SetKineticEnergy( ek );
00088   et = ek + amas;
00089   p = std::sqrt( std::abs((et-amas)*(et+amas)) );
00090   pp = currentParticle.GetMomentum().mag();
00091   if( pp > 0.0 )
00092   {
00093     G4ThreeVector momentum = currentParticle.GetMomentum();
00094     currentParticle.SetMomentum( momentum * (p/pp) );
00095   }
00096 
00097   G4ReactionProduct modifiedOriginal = currentParticle;
00098 
00099   currentParticle.SetSide( 1 ); // incident always goes in forward hemisphere
00100   targetParticle.SetSide( -1 );  // target always goes in backward hemisphere
00101   G4bool incidentHasChanged = false;
00102   G4bool targetHasChanged = false;
00103   G4bool quasiElastic = false;
00104   G4FastVector<G4ReactionProduct,GHADLISTSIZE> vec;  // vec will contain the secondary particles
00105   G4int vecLen = 0;
00106   vec.Initialize( 0 );
00107     
00108   const G4double cutOff = 0.1*MeV;
00109   if( currentParticle.GetKineticEnergy() > cutOff )
00110     Cascade( vec, vecLen,
00111              originalIncident, currentParticle, targetParticle,
00112              incidentHasChanged, targetHasChanged, quasiElastic );
00113     
00114   CalculateMomenta( vec, vecLen,
00115                     originalIncident, originalTarget, modifiedOriginal,
00116                     targetNucleus, currentParticle, targetParticle,
00117                     incidentHasChanged, targetHasChanged, quasiElastic );
00118     
00119   SetUpChange( vec, vecLen,
00120                currentParticle, targetParticle,
00121                incidentHasChanged );
00122     
00123   delete originalTarget;
00124   return &theParticleChange;    
00125 }


The documentation for this class was generated from the following files:
Generated on Mon May 27 17:53:18 2013 for Geant4 by  doxygen 1.4.7